Monthly outlook for Monte Grande, PR: average high 85.2°, average low 78°. That is 0.3° below the climate normal for October. Precipitation is expected on 10 days (about 1.6 inches), against a normal of 10 days and 2.2 inches. The warmest day looks like 14 October (90.5°), the coolest 14 October (74.6°).
85.2°/78°
Average high / low
−0.3°
Below normal
10 / 10
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
85.4°
86°
-0.3°
23 October – 1 November
84.9°
85.4°
-0.3°
2 November – 11 November
at normal
85°
—
October records over 66 years
95.5°12 October 2024All-time high
71.2°4 October 2025All-time low
Climate normals and records are computed from the nearest reference point — Betances (4 mi).
Wed, 1491° / 75°0.01
91 °
Monte Grande, Wednesday, 14 October
Light rain. High 91°, low 75°.
Pressure29.94 inHg
Wind10.3 mph NW
Humidity81%
Visibility6.2 mi
Dew point75°
Thu, 1584° / 78°0.06
84 °
Monte Grande, Thursday, 15 October
Light rain. High 84°, low 78°.
Pressure29.94 inHg
Wind9.7 mph NW
Humidity84%
Visibility6.2 mi
Dew point76°
Fri, 1684° / 79°0.07
84 °
Monte Grande, Friday, 16 October
Light rain. High 84°, low 79°.
Pressure29.91 inHg
Wind7.7 mph W
Humidity81%
Visibility2.3 mi
Dew point76°
Sat, 1784° / 79°0.06
84 °
Monte Grande, Saturday, 17 October
Light rain. High 84°, low 79°.
Pressure29.94 inHg
Wind10.6 mph NW
Humidity76%
Visibility—
Dew point75°
Sun, 1884° / 78°0.02
84 °
Monte Grande, Sunday, 18 October
Light rain. High 84°, low 78°.
Pressure29.97 inHg
Wind10.9 mph W
Humidity81%
Visibility—
Dew point75°
Mon, 1985° / 78°0.09
85 °
Monte Grande, Monday, 19 October
Light rain. High 85°, low 78°.
Pressure29.97 inHg
Wind7.3 mph S
Humidity64%
Visibility—
Dew point71°
Tue, 2085° / 77°0.01
85 °
Monte Grande, Tuesday, 20 October
Light rain. High 85°, low 77°.
Pressure29.94 inHg
Wind9.6 mph S
Humidity65%
Visibility—
Dew point71°
Wed, 2185° / 77°0
85 °
Monte Grande, Wednesday, 21 October
Overcast. High 85°, low 77°.
Pressure29.91 inHg
Wind14.3 mph S
Humidity69%
Visibility—
Dew point72°
Thu, 2285° / 79°0.03
85 °
Monte Grande, Thursday, 22 October
Light rain. High 85°, low 79°.
Pressure29.91 inHg
Wind13.4 mph S
Humidity71%
Visibility—
Dew point74°
Fri, 2384° / 79°0.29
84 °
Monte Grande, Friday, 23 October
Light rain. High 84°, low 79°.
Pressure29.97 inHg
Wind13.7 mph S
Humidity70%
Visibility—
Dew point73°
Sat, 2483° / 79°0.12
83 °
Monte Grande, Saturday, 24 October
Light rain. High 83°, low 79°.
Pressure30.00 inHg
Wind17.4 mph S
Humidity71%
Visibility—
Dew point71°
Sun, 2586° / 79°0.3
86 °
Monte Grande, Sunday, 25 October
Rain. High 86°, low 79°.
Pressure29.97 inHg
Wind17 mph SE
Humidity67%
Visibility—
Dew point70°
Mon, 2686° / 77°0.23
86 °
Monte Grande, Monday, 26 October
Rain. High 86°, low 77°.
Pressure29.91 inHg
Wind16.1 mph SE
Humidity70%
Visibility—
Dew point73°
Tue, 2785° / 79°0.22
85 °
Monte Grande, Tuesday, 27 October
Rain. High 85°, low 79°.
Pressure29.94 inHg
Wind18.3 mph SE
Humidity72%
Visibility—
Dew point74°
Wed, 2885° / 81°0.06
85 °
Monte Grande, Wednesday, 28 October
Light rain. High 85°, low 81°.
Pressure29.94 inHg
Wind14.6 mph S
Humidity73%
Visibility—
Dew point75°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2985° / 77°0.13
85 °
Monte Grande, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high85°
Average low77°
Average precipitation0.13 in
Chance of precipitation62%
Record high91° (2025)
Record low73° (2018)
Fri, 3085° / 76°0.15
85 °
Monte Grande, Friday, 30 October
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.15 in
Chance of precipitation65%
Record high92° (2025)
Record low72° (2018)
Sat, 3185° / 76°0.11
85 °
Monte Grande, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.11 in
Chance of precipitation47%
Record high91° (2025)
Record low73° (2019)
Sun, 0185° / 76°0.11
85 °
Monte Grande, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.11 in
Chance of precipitation58%
Record high90° (2010)
Record low72° (2024)
Mon, 0285° / 76°0.12
85 °
Monte Grande, Monday, 2 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.12 in
Chance of precipitation50%
Record high90° (2025)
Record low71° (2024)
Tue, 0385° / 76°0.13
85 °
Monte Grande, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.13 in
Chance of precipitation55%
Record high89° (2009)
Record low71° (2017)
Wed, 0485° / 76°0.12
85 °
Monte Grande, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.12 in
Chance of precipitation50%
Record high89° (1982)
Record low70° (2025)
Thu, 0585° / 76°0.13
85 °
Monte Grande, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.13 in
Chance of precipitation47%
Record high90° (2025)
Record low71° (2025)
Fri, 0685° / 76°0.12
85 °
Monte Grande, Friday, 6 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.12 in
Chance of precipitation53%
Record high90° (2025)
Record low72° (2018)
Sat, 0785° / 76°0.15
85 °
Monte Grande, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.15 in
Chance of precipitation53%
Record high90° (1993)
Record low72° (1971)
Sun, 0885° / 76°0.12
85 °
Monte Grande, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.12 in
Chance of precipitation63%
Record high90° (1993)
Record low73° (2018)
Mon, 0985° / 76°0.15
85 °
Monte Grande, Monday, 9 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.15 in
Chance of precipitation65%
Record high89° (1962)
Record low73° (2021)
Tue, 1085° / 76°0.12
85 °
Monte Grande, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.12 in
Chance of precipitation52%
Record high92° (2025)
Record low73° (2018)
Wed, 1185° / 76°0.11
85 °
Monte Grande, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.11 in
Chance of precipitation47%
Record high91° (2025)
Record low72° (2000)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Monte Grande, PR are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Monte Grande, PR since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.